Interpreters: ERuby · Hackety Hack · Interactive Ruby Shell · IronRuby · JRuby · Mod ruby · Mongrel (web server) · Rinda · SketchUp Ruby Libraries and management: Camping (microframework) · Nitro (web_framework) · RichRuby · RubyGems · Ruby on Rails · WEBrick Development-related: RadRails · Rake (software) · Ruby Document format